共 5 条
[1]
BRONDSTED A, 1965, P AM MATH SOC, V16, P606
[2]
Laurent P-J., 1972, Approximation et optimisation
[3]
Rockafellar R. T., 1972, Princeton Mathematical Series
[5]
VESELY L, 1993, NONLINEAR ANAL, V24, P1299